Missouri

Alberta

Manitoba

Saskatchewan

Illinois

Kansas

Nebraska

North Dakota

Oklahoma

South Dakota

Texas

None

<p>A map showing a pipeline route in black starting from Alberta, Canada, passing through just north of Regina and on into Manitoba, and various states in the U S A, including North Dakota, South Dakota, Oklahoma, and Texas, and ending in Houston.</p>

<p>Location of the Keystone oil pipeline system, which extends from Alberta, Canada to refineries in Illinois and Texas</p>

Keystone Pipeline

North America

Canadian Association of Petroleum Producers

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations